Technology Solutions & Invention LLC

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
8157391 Methods of forming retroflective structures having a helical geometryExpiredSep 09, 11Apr 17, 12[G02B]
8033671 Retroreflective structures having a helical geometryExpiredAug 11, 08Oct 11, 11[G02B]
7703931 Two-sided corner-cube retroreflectors and methods of manufacturing the sameExpiredMar 19, 09Apr 27, 10[G02B]
7506987 Two-sided corner-cube retroreflectors and methods of manufacturing the sameExpiredFeb 29, 08Mar 24, 09[G02B]
2009/0027,775 Multiple layer reflective tagAbandonedJul 26, 07Jan 29, 09[G02B]
2006/0087,735 Retroreflective structuresAbandonedMay 12, 05Apr 27, 06[G02B]

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